Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
A modest decline in the average high-temperature is seen during September, decreasing from 81.9°F (27.7°C) in August to a still moderately hot 74.7°F (23.7°C). In September, the average low-temperature records at a refreshing 55.9°F (13.3°C) during the nights.Humidity
In September, the average relative humidity is 78%.Rainfall
September is the month with the least rainfall in Grandin. Rain falls for 11.6 days and accumulates 1.26" (32mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Grandin, the average length of the day in September is 12h and 27min.On the first day of the month, sunrise is at 6:27 am and sunset at 7:31 pm. On the last day of September, sunrise is at 6:55 am and sunset at 6:43 pm EDT.
Sunshine
The average sunshine in September is 8.7h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
What is the driest month?
How many days does it rain in September?
When it does not snow?
Does it snow in Grandin in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Grandin, NJ
- Average high temperature in September: 74.7°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in September: 55.9°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).
Average pressure in September
Grandin, NJ
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Grandin, NJ
- Average wind speed in September: 5.6mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Grandin, NJ
- Average humidity in September: 78%
The months with the highest relative humidity are February, October and December (80%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Grandin, NJ
- Average rainfall in September: 1.26"
The wettest month (with the highest rainfall) is July (2.6").
The driest month (with the least rainfall) is September (1.26").
Average rainfall days in September
Grandin, NJ
- Average rainfall days in September: 11.6 days
The month with the highest number of rainy days is July (16.7 days).
The month with the least rainy days is January (8.1 days).
Average snowfall in September
Grandin, NJ
- Average snowfall in September: 0"
The month with the highest snowfall is March (2.4").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Grandin, NJ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Grandin, NJ
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in September
Grandin, NJ
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in September
Grandin, NJ
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Grandin, NJ
- Average cloud cover in September: 39
The months with the most cloud cover are February and December (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility in September
Grandin, NJ
- Average visibility in September: 5mi
The months with the highest visibility are January, March, April, July, November and December (6mi).
The months with the lowest visibility are February, May, June, August, September and October (5mi).
Grandin, New Jersey, USA
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